[Port] [6000.0] [Shader Graph] Fix for UUM-114439

Author: FredMoreau

Packages/com.unity.shadergraph/Samples~/UGUIShaders/Scripts/Runtime/CustomToggle.cs

@@ -61,6 +61,7 @@ public Graphic Graphic
         protected override void Awake()
         {
             base.Awake();
+            onValueChanged.AddListener((x) => UpdateMaterial());
         }
 
 #if UNITY_EDITOR
@@ -85,31 +86,13 @@ protected override void OnValidate()
             if (!PrefabUtility.IsPartOfPrefabAsset(this) && !Application.isPlaying)
                 CanvasUpdateRegistry.RegisterCanvasElementForLayoutRebuild(this);
 
-            UpdateMaterial(true);
+            UpdateMaterial();
         }
 #endif
 
-        public void UpdateMaterial(bool findGroupToggles = false)
+        public void UpdateMaterial()
         {
-            if (group != null)
-            {
-                if (findGroupToggles) // only used in Edit mode when ToggleGroup isn't initialized already
-                {
-                    foreach (var t in FindObjectsByType<CustomToggle>(FindObjectsInactive.Include, FindObjectsSortMode.None))
-                        if (t.group == group)
-                            t.Graphic.SetMaterialDirty();
-                }
-                else
-                {
-                    foreach(var t in group.ActiveToggles())
-                        if (t is CustomToggle customToggle)
-                            customToggle.Graphic.SetMaterialDirty();
-                }
-            }
-            else
-            {
-                Graphic.SetMaterialDirty();
-            }
+            Graphic.SetMaterialDirty();
         }
 
         protected override void DoStateTransition(SelectionState state, bool instant)
@@ -121,16 +104,15 @@ protected override void DoStateTransition(SelectionState state, bool instant)
 
         public virtual Material GetModifiedMaterial(Material baseMaterial)
         {
-            _material ??= new Material(baseMaterial);
-
+            _material ??= new(baseMaterial);
             _material.CopyPropertiesFromMaterial(baseMaterial);
 
             if (_material.HasFloat(StatePropertyId))
                 _material.SetFloat(StatePropertyId, (int)currentSelectionState);
 
             if (_material.HasFloat(IsOnPropertyId))
                 _material.SetFloat(IsOnPropertyId, isOn ? 1 : 0);
-
+            
             return _material;
         }